I've never been a fan of Panzer General or hex-based wargames in general, but after playing PC for a few days I just realized what I've missed

Although PG was never one of my favorite games, this doesn't mean that I didn't played it. This brings me to my question regarding a feature that PG had and, it seems, PC doesn't: reassigning/selling your core units. I've noticed that the only way to change one of your units is by upgrading and this is somewhat limiting.
For e.g: in the first mission in Poland, I wanted to sell the fighter/bomber and buy a Stuka tactical bomber. In this case, let's say that the cost of upgrading is about the same as selling and buying. But what if I want to sell a tank, in order to get more prestige for a fighter?
Another e.g, I know that some PG players sold a bonus unit, received after a brilliant victory, in order to buy something more useful (sell a TK to get a normal Tank).
Any chance of having something like this implemented in future versions?